A.for why
B.for what
C.which
D.why
第1题:
22.In the daytime, when you dive in the sea, you ________
A. can see everything green and blue
B. can- t be in danger
C. can catch nothing
D. can't see anything clearly
第2题:
A.mustn't
B.can't
C.needn't
第3题:
A.needn't , may
B.mustn't , may
C.can't , can
D.needn't , must
第4题:
第5题:
A.Must; needn’t
B.Can; can’t
C.May; mustn’t
D.Can; mustn’t
第6题:
This is very important. You_____remember to shut down your computer every
evenlng。
A. ought
B. need
C. must
D. can
第7题:
You'd better ______ now.
A、does
B、doing
C、do
D、did
第8题:
A. mustn’ t…must
B. needn’ t…must
C. can’ t…can
D. can’ t…must
第9题:
A、inform
B、uniform
C、tall
D、tell
第10题:
Me,you是两个初始集合,则下列关于派生集合定义方式正确的是
A.link/me,you/:a;
B.link(me,you):a;
C.link/me you/a;
D.link(me,you)/a;